Carney, J.N., Horak, J.M., Pharaoh, T.C., Gibbons, W., Wilson, D., Barclay, W.J., Bevins, R.E., Cope, J.C.W. & Ford, T.D. 2000. Precambrian Rocks of England and Wales. Geological Conservation Review Series, No. 20, JNCC, Peterborough, ISBN 1 86107 4875.

The original source material for these web pages has been made available by the JNCC under the Open Government Licence 3.0. Full details in the JNCC Open Data Policy

References

In this reference list the arrangement is alphabetical by author surname for works by sole authors and dual authors. Where there are references that include the first-named author with others, the sole-author works are listed chronologically first, followed by the dual author references (alphabetically) followed by the references with three or more authors listed chronologically. Chronological order is used within each group of identical authors.

Acland, H.C. (1898) On a Volcanic Series in the Malvern Hills near the Herefordshire Beacon. Quarterly Journal of the Geological Society of London, 54, 556–63.

Adye, E.H. (1906) The Twentieth Century Atlas of Microscopical Petrography, T Murby, London.

Allaby, A. and Allaby, M. (1990) The Concise Oxford Dictionary of Earth Sciences, Oxford University Press, Oxford, 410 pp.

Allen, J.R.L. (1957) The Precambrian geology of Caldecote and Hartshill, Warwickshire. Transactions of the Leicestershire Literary and Philosophical Society, 51, 16–31.

Allen, J.R.L. (1968a) Precambrian Rocks: the Nuneaton District. In The Geology of the East Midlands (eds P.C. Sylvester-Bradley and T.D. Ford), Pitman Press, Bath, pp. 15–19.

Allen, J.R.L. (1968b) The Cambrian and Ordovician Systems. In The Geology of the East Midlands (eds P.C. Sylvester-Bradley and T.D. Ford), Pitman Press, Bath, pp. 20–40.

Allen, P.M. and Jackson, A.A. (1978) Bryn-teg Borehole, North Wales. Bulletin of the Geological Survey of Great Britain, 61, 51 pp.

Allport, S. (1877) On certain ancient devitrified pitchstones and perlites from the Lower Silurian district of Shropshire. Quarterly Journal of the Geological Society of London, 33, 449–60.

Anderton, R., Bridges, PH., Leeder, M.R. and Sellwood, B.W. (1979) A Dynamic Stratigraphy of the British Isles, Unwin, London, 301 pp.

Arthurton, R.S., Johnson, E.W. and Mundy, D.J.C. (1988) Geology of the country around Settle. Memoir of the British Geological Survey, Sheet 60 (England and Wales), 147 pp.

Baker, J.W. (1969) Correlation problems of unmetamorphosed Pre-Cambrian rocks in Wales and southeast Ireland. Geological Magazine, 106, 246–59.

Baker, J.W. (1971) The Proterozoic history of Southern Britain. Proceedings of the Geologists' Association, London, 82, 246–66.

Baker, J.W. (1973) A marginal Late Proterozoic ocean basin in the Welsh region. Geological Magazine, 110,447–55.

Barber, A.J. and Max, M.D. (1979) A new look at the Mona Complex (Anglesey, North Wales). Journal of the Geological Society of London, 136, 407–32.

Barber, A.J., Max, M.D. and Bruck, P.M. (1981) Field Meeting in Anglesey and southeastern Ireland. Proceedings of the Geologists' Association, 92, 269–91.

Barclay, WJ., Ambrose, K., Chadwick, R.A. and Pharaoh, T.C. (1997) Geology of the country around Worcester. Memoir of the British Geological Survey, Sheet 199 (England and Wales), 156 pp.

Bassett, M.G., Bevins, R.E., Gibbons, W and Howells, M.F. (1986) A geotraverse through the Caledonides of Wales. In Synthesis of the Caledonian Rocks of Britain, (eds D.J. Fettes and A.L. Harris), NATO ASI Series C, Mathematics and Physical Sciences, 175, pp. 29–76.

Bates, D.E.B (1968) The Lower Palaeozoic brachiopod and trilobite faunas of Anglesey. Bulletin of the British Museum (Natural History) Geology, 16, (4), 128–99.

Bates, D.E.B. (1974) The structure of the Lower Palaeozoic rocks of Anglesey, with special reference to faulting. Geological Journal, 9, 39–60.

Beckinsale, R.D. and Thorpe, R.S. (1979) Rubidium-strontium whole-rock evidence for the age of metamorphism and magmatism in the Mona Complex of Anglesey. Journal of the Geological Society of London, 136, 433–9.

Beckinsale, R.D., Thorpe, R.S., Pankhurst, R.J. and Evans, J.A. (1981) Rb-Sr whole rock isochron evidence for the age of the Malvern Hills Complex. Journal of the Geological Society of London, 138, 69–93.

Beckinsale, R.D., Evans, J.A., Thorpe, R.S., Gibbons, W and Harmon, R.S. (1984) Rb-Sr whole rock ages, δ18O values and geochemical data for the Sarn Igneous Complex and the Parwyd gneisses of the Mona Complex of Llŷn, N Wales. Journal of the Geological Society of London, 141, 701–9.

Bennett, M.C., Dunne, W.M. and Todd, S.P. (1989) Reappraisal of the 'Cullenstown Formation': implications for the Lower Palaeozoic tectonic history of SE Ireland. Geological Journal, 24, 317–29.

Bennett, P.W., Lowe, E.E., Gregory, H.H. and Jones, F. (1928) The geology of Charnwood Forest. Proceedings of the Geologists' Association, 39, 241–97.

Benus, A.P. (1988) Sedimentological context of a deep-water Ediacaran fauna (Mistaken Point Formation, Avalon Zone, eastern Newfoundland). Bulletin of the New York State Museum, 463, 8–9.

Besley, B.M. and Turner, P. (1983) Origin of red beds in a moist tropical climate (Etruria Formation, Upper Carboniferous, UK). In Residual Deposits (ed. R.C.L. Wilson), Special Publication of the Geological Society of London, 11, pp. 131–47.

Bevins, R.E. and Rowbotham, G. (1983) Low grade metamorphism in the Welsh sector of the paratectonic Caledonides. Geological Journal, 18, 141–67.

Bevins, R.E., Bluck, B.J., Brenchley, P.J. et al. (1992) Ordovician. In Atlas of Palaeogeography and Lithofacies (eds J.C.W. Cope, J.K. Ingham and P.F. Rawson), Memoir of the Geological Society of London, pp. 19–36.

Bevins, R.E., Pharaoh, T.C., Cope, J.C.W. and Brewer, T.S. (1995) Geochemical character of Neoproterozoic volcanic rocks in southwest Wales. Geological Magazine, 132, 339–49.

Billings, E. (1872) On some fossils from the primordial rocks of Newfoundland. Canadian Naturalist, Series 2, 6, 465–79.

Blake, J.F. (1888) The occurrence of a glaucophane bearing rock in Anglesey. Geological Magazine, 5, 125–7.

Blake, J.F. (1890) On the Monian and basal Cambrian rocks of Shropshire. Quarterly Journal of the Geological Society of London, 46, 386–420.

Bland, B.H. (1984) Arumberia Glaessner & Walter, a review of its potential for correlation in the region of the Precambrian -Cambrian boundary. Geological Magazine, 121, 625–33.

Bland, B.H. (1994) Trace fossils in the Swithland Formation. Transactions of the Leicester Literary and Philosophical Society, 8, 27.

Bland, B.H. and Goldring, R. (1995) Teichithnus Seilacher 1955 and other trace fossils (Cambrian?) From the Charnian of Central England. Neues Jahrbuch für Geologie and Paläeontologie (Seilacher Festschrift), 195, 5–23.

Bloxam, T.W. and Dirk, M.H.J. (1988) The petrology and geochemistry of the St. David's granophyre and the Cwm Bach rhyolite, Pembrokeshire, Dyfed. Mineralogical Magazine, 52, 563–75.

Blyth, F.G.H. and Lambert, R. St. J. (1970) Chemical data from the Malvernian of the Malvern Hills. Quarterly Journal of the Geological Society of London, 125, 543–55.

Bonney, T.G. (1879) Notes on the microscopic structure of some Shropshire rocks. Quarterly Journal of the Geological Society of London, 35, 662–9.

Bonney, T.G. (1881) The Serpentine and Associated Rocks of Anglesey. Quarterly Journal of the Geological Society of London, 46, 40.

Bonney, T.G. and Raisin, C.A. (1889) Serpentine and associated rocks in Anglesey. Quarterly Journal of the Geological Society of London, 60, 276.

Bosworth, T.O. (1912) The Keuper Marls Around Charnwood Forest. Leicester Literary and Philosophical Society, (Thornley, Leicester), 129 pp.

Bott, M.H.P. (1961) Geological interpretation of magnetic anomalies over the Askrigg Block. Quarterly Journal of the Geological Society of London, 97, 481–95.

Bott, M.H.P. (1967) Geophysical investigations of the northern Pennine basement rocks. Proceedings of the Yorkshire Geological Society, 36, 139–68.

Bouloton, J. and Gasquet, D. (1995) Melting and undercooled crystallisation of felsic xenoliths from minor intrusions (Jebilet Massif, Morocco). Lithos, 35, 201–19.

Boulter, C.A. and Yates, M.G. (1987) Confirmation of the pre-cleavage emplacement of both the Northern and Southern Diorites into the Charnian Supergroup. Mercian Geologist, 10, 281–6.

Bouma, A.H. (1962) Sedimentology of some flysch deposits; a graphic approach to facies interpretation, Elsevier, Amsterdam, 168 pp.

Bowring, S.A., Grotzinger, J.P., Isachsen, C.E., Knoll, A.H., Pelechaty, S.M. and Kolosov, P (1993) Calibrating rates of early Cambrian evolution. Science, 261, 1293–8.

Boynton, H.E. (1978) Fossils from the Precambrian of Charnwood Forest, Leicestershire. Mercian Geologist, 6, 291–6.

Boynton, H.E. (1999) Discoveries of new fossils in the Precambrian of Charnwood Forest, Leicestershire, England. Mercian Geologist, 14, 197–201.

Boynton, H.E. and Ford, T.D. (1979) Pseudovendia charnwoodensis — a new Precambrian arthropod from Charnwood Forest, Leicestershire. Mercian Geologist, 7, 175–7.

Boynton, H.E. and Ford, T.D. (1995) Ediacaran fossils from the Precambrian (Charnian Supergroup) of Charnwood Forest, Leicestershire, England. Mercian Geologist, 13, 165–83.

Boynton, H.E. and Ford, T.D. (1996) Ediacaran fossils from the Precambrian of Charnwood Forest — corrigendum. Mercian Geologist, 14, 2–3.

Boynton, H.E. and Holland, C.H. (1997) Geology of the Pedwardine district, Herefordshire and Powys. Geological Journal, 32, 279–92.

Boynton, H.E. and Moseley, J. (1999) The geology of The Brand, Charnwood Forest, Leicestershire. Transactions of the Leicester Literary and Philosophical Society, 93, 32–8.

Brammall, A. (1940) In Report of Easter field meeting at Hereford. Proceedings of the Geologists' Association, 51, pp. 52–6.

Brammall, A. and Dowie, D.L. (1936) The distribution of gold and silver in the crystalline rocks of the Malvern Hills. Mineralogical Magazine, 24, 260–4.

Brasier, M.D. (1992) Introduction. Background to the Cambrian explosion. Journal of the Geological Society of London, 149, 585–7.

Brasier, M.D. and Hewitt, R.A. (1979) Environmental setting fossiliferous rocks from the uppermost Proterozoic-Lower Cambrian of central England. Palaeogeography, Palaeoclimatology and Palaeoecology, 27, 35–57.

Brasier, M.D. and McIlroy, D. (1998) Neonereites uniserialis from c. 600 Ma year old rocks in western Scotland and the emergence of animals. Journal of the Geological Society of London, 155, 5–12.

Brasier, M.D., Hewitt, R.A. and Brasier, C.J. (1978) On the late Precambrian-early Cambrian Hartshill Formation of Warwickshire. Geological Magazine, 115, 21–36.

Bridge, D.McC., Carney, J.N., Lawley, R.S. and Rushton, A.W.A. (1998) The geology of the country around Coventry and Nuneaton. Memoir of the British Geological Survey, Sheet 169 (England and Wales), 185 pp.

British Geological Survey. (1992) St. David's. 1:50 000 Provisional Series, Sheet 209.

British Geological Survey. (1996) Tectonic map of Britain, Ireland and adjacent areas. Pharaoh, T.C., Morris, J.H., Long, C.B. and Ryan, P.D. (compilers). 1:1 500 000 British Geological Survey, Keyworth, Nottingham.

Brooks, M. (1963) Rock groups of the Malvern Hills. Nature, London, 198, 567.

Brooks, M. (1968) The geological results of gravity and magnetic surveys in the Malvern Hills and adjacent areas. Geological Journal, 6, 13–30.

Brooks, M. (1970) Pre-Llandovery tectonism and the Malvern structure. Proceedings of the Geologists' Association, 81, 249–68.

Bullard, D.W. (1975) Aspects of the geology and geochemistry of the soils and Precambrian rocks of the Malvern Hills, Worcestershire. Unpublished PhD thesis, University of Nottingham.

Bullard, D.W. (1989) Malvern Hills. A Student's Guide to the Geology of the Malverns. Nature Conservancy Council. 73pp.

Butcher, N. (1962) The tectonic structure of the Malvern Hills. Proceedings of the Geologists' Association, 73, 103–23.

Callaway, C. (1879) The Precambrian Rocks of Shropshire — Part I. Quarterly Journal of the Geological Society of London, 35, 643–62.

Callaway, C. (1880) On a second Precambrian group in the Malvern Hills. Quarterly Journal of the Geological Society of London, 36, 536–9.

Callaway, C. (1882) The Precambrian (Archaean) rocks of Shropshire Part II. Quarterly Journal of the Geological Society, London, 78, 119–26.

Callaway, C. (1886) On some derived fragments in the Longmynd and newer Archaean rocks of Shropshire. Quarterly Journal of the Geological Society of London, 42, 481–5.

Callaway, C. (1889) On the production of secondary minerals and shear-zones in the crystalline rocks of the Malvern Hills. Quarterly Journal of the Geological Society of London, 45, 475–503.

Callaway, C. (1891) On the unconformities between the rock systems underlying the Cambrian quartzite in Shropshire. Quarterly Journal of the Geological Society of London, 47, 109–25.

Callaway, C. (1893) The origin of the crystalline schists of the Malvern Hills. Quarterly Journal of the Geological Society of London, 49, 398–425.

Callaway, C. (1900) On Longmyndian inliers at Old Radnor and Huntley (Gloucestershire). Quarterly Journal of the Geological Society of London, 61, 511–20.

Cantrill, T.C. and Thomas, H.H. (1906) On the igneous and associated sedimentary rocks of Llangynog, Caermarthenshire. Quarterly Journal of the Geological Society of London, 67, 223–52.

Carney, J.N. (1994) Geology of the Thringstone, Shepshed and Loughborough districts (SK41NW, SK41NE and SK51NW). British Geological Survey Technical Report, WA/94/08.

Carney, J.N. (1995) Precambrian and Lower Cambrian rocks of the Nuneaton Inlier: A field excursion to Boon's and Hartshill quarries. Mercian Geologist, 13, 189–98.

Carney, J.N. (1999) Revisiting the Charnian Supergroup: new advances in understanding old rocks. Geology Today, 15, 221–229.

Carney, J.N. (2000) Igneous processes within late Precambrian volcanic centres near Whitwick, north-western Charnwood Forest. Mercian Geologist, 15, 7–28

Carney, J.N. and Pharaoh, T.C. (1993) Geology and structure of Precambrian rocks in quarries north-west of Nuneaton. British Geological Survey Technical Report, WA/93/94.

Cas, R.A.F. and Wright, J.V. (1987) Volcanic Successions: Modern and Ancient: a Geological Approach to Processes, Products and Successions, Unwin, London, 528 pp.

Cas, R.A.F. and Wright, J.V. (1991) Subaqueous pyroclastic flows and ignimbrites: an assessment. Bulletin of Volcanology, 53, 357–80.

Chadwick, R.A. (1985) Seismic reflection investigations into the stratigraphy and structural evolution of the Worcester Basin. Journal of the Geological Society of London, 142, 187–202.

Chadwick, R.A. and Smith, N.J.P. (1988) Evidence of negative structural inversion beneath central England from new seismic reflection data. Journal of the Geological Society of London, 145, 519–22.

Chinner, G.A. (1961) The origin of sillimanite in Glen Clover, Angus. Journal of Petrology, 27, 312–23.

Cobbold, E.S. (1900) The geology of the Church Stretton district. In Church Stretton, vol. 1 (ed. C.W. Campbell-Hyslop), L. Wilding, Shrewsbury, pp. 1–115.

Cobbold, E. S. (1925) Unconformities in south Shropshire. Proceedings of the Geologists' Association, 36, 364–67.

Cobbold, E.S. and Whittard, W.F. (1935) The Helmeth Grits of the Caradoc Range, Church Stretton; their bearing on part of the Pre-Cambrian succession of Shropshire. Proceedings of the Geologists' Association, 46, 348–59.

Cocks, L.R.M and Fortey, R.A. (1982) Faunal evidence for oceanic separations in the Palaeozoic of Britain. Journal of the Geological Society of London, 139, 465–78.

Cole, G.A. (1886). The igneous rocks of Stanner. Geological Magazine, 23, 219–25.

Coney, P.J., Jones, D.L. and Monger, J.W.H. (1980) Cordilleran suspect terranes. Nature, London, 288, 329–33.

Conway Morris, S. (1993) Ediacaran-like fossils in Cambrian Burgess Shale-type faunas of North America. Palaeontology, 36, 593–635.

Cooper, A.H., Millward, D., Johnson, E.W. et al. (1993) The early Palaeozoic evolution of northwest England. Geological Magazine, 130, 711–24.

Cope, J.C.W. (1977) An Ediacara type fauna from South Wales. Nature, London, 264, 624.

Cope, J.C.W. (1980) The early history of the southern margin of the Towy Anticline in the Carmarthen area, South Wales. In The Caledonides of the British Isles Reviewed (eds A.L. Harris, C.H. Holland and B.E. Leake), Special Publication of the Geological Society of London, 8, pp. 527–32.

Cope, J.C.W. (1982) The geology of the Llanstephan Peninsula. In Geological Excursions in Dyfed, south-west Wales (ed. M.G. Bassett), National Museum of Wales, Cardiff, pp. 259–69.

Cope, J.C.W. (1983) Precambrian faunas from the Carmarthen district. Nature in Wales, 1, 11–16, plates 1–2.

Cope, J.C.W. (1985) Preservation of Ediacaran medusoids in South Wales. Discussion of Fedonkin, M.A. Precambrian metazoa: the problem of preservation, systematics and evolution. Philosophical Transactions of the Royal Society of London, Series B, 311, 45.

Cope, J.C.W. (1989) The conservation of biostratigraphical sites. Special Papers in Palaeontology, 40, 95–104.

Cope, J.C.W. and Bevins, R.E. (1993) The stratigraphy and setting of the Precambrian rocks of the Llangynog Inlier, Dyfed, South Wales. Geological Magazine, 130, 101–11.

Cope, J.C.W. and Gibbons, W. (1987) New evidence for the relative age of the Ercall Granophyre and its bearing on the Precambrian–Cambrian boundary in southern Britain. Geological Journal, 22, 53–60.

Cope, J.C.W. and McIlroy, D. (1998) On the occurrence of foraminiferans in the lower Cambrian of the Llangynog Inlier, South Wales. Geological Magazine, 135, 227–9.

Cope, J.C.W. and Rushton, A.W.A. (1992) Cambrian and early Tremadoc rocks of the Llangynog Inlier, Dyfed, South Wales. Geological Magazine, 129, 543–52.

Cope, J.C.W., Fortey, R.A. and Owens, R.M. (1978) Newly discovered Tremadoc rocks in the Carmarthen district, South Wales. Geological Magazine, 115, 195–8.

Coppack, B.C. (1974) Rushton and Wrekin Buildings boreholes. In Report of the Institute of Geological Sciences Boreholes, 1973, Institute of Geological Sciences Report, 74/7.

Cosgrove, J. (1980). The tectonic implications of some small scale structures on the Mona Complex, Holy Island, North Wales. Journal of Structural Geology, 2, 383–96.

Coster, D., Milsom, J. and Livermore, M. (1997) Gravity field variations around the Old Radnor Inlier: a preliminary study. Transactions of the Radnorshire Society, 67, 14–19.

Coward, M.J. and Siddans, A.W.B. (1979) The tectonic evolution of the Welsh Caledonides. In The Caledonides of the British Isles reviewed (eds A.L. Harris, C.H. Holland and B.E. Leake), Special Publication of the Geological Society of London, 8, pp. 187–98.

Cox, A.H., Green, J.F.N., Jones, O.T. and Pringle, J. (1930) The geology of the St. David's district, Pembrokeshire. Proceedings of the Geologists' Association, 41, 241–73.

Cribb, S.J. (1975) Rubidium-strontium ages and strontium isotope ratios from the igneous rocks of Leicestershire. Journal of the Geological Society of London, 131, 203–312.

Crimes, T.P. and Dhonau N.B. (1967) The Pre-Cambrian and Lower Palaeozoic rocks of south-east Co. Wexford, Eire. Geological Magazine, 104, 213–21.

Crimes, T.P. and Germs, G.J.B. (1982) Trace fossils from the Nama Group (Precambrian-Cambrian) of southwest Africa (Namibia). Journal of Paleontology, 56, 890–907.

Crimes, T.P. and Malroy, D. (1999) A biota of Ediacaran aspect from lower Cambrian strata on the Digermul Peninsula, Arctic Norway. Geological Magazine, 136, 633–42.

Dakyns, J.R., Tiddeman, R.N., Gunn, W et al. (1890) The geology of the country around Ingleborough, with parts of Wensleydale and Wharfedale. (Explanation of quarter sheet 97SW). Memoir of the Geological Survey of England and Wales, Sheet 50 New Series, 103 pp.

Dallmeyer, R.D. and Gibbons, W. (1987) The age of blueschist metamorphism in Anglesey, North Wales: evidence from 40Ar/39Ar mineral dates of the Penmynydd schists. Journal of the Geological Society of London, 144, 843–50.

Dalziel, I.W.D. (1991) Pacific margins of Laurentia and East Antarctica–Australia as a conjugate rift pair: Evidence and implications for an Eocambrian supercontinent. Geology, 19, 598–601.

Dalziel, I.W.D. (1997) Neoproterozoic-Palaeozoic geography and tectonics: Review, hypothesis, environmental speculation. Geological Society of America Bulletin, 109, 16–42.

Davies, E.C. and Bloxam, T.W. (1990) Petrology and geochemsitry of late Precambrian volcanic rocks of the St. David's area, Pembrokeshire, South Wales (U.K.), Geologie en Minjnbouw, 69, 407–16.

Davies, G.R., Gledhill, A. and Hawkesworth, C. (1985) Upper crustal recycling in southern Britain : evidence from Ns and Sr isotopes. Earth and Planetary Science Letters, 75, 1–12.

Davies, J.R. et al. (1997) Geology of the country around Llanilar and Rhayader. Memoir of the British Geological Survey, Sheets 178 and 179 (England and Wales), 267 pp.

Dean, W.T. (1964) The Geology of the Ordovician and Adjacent Strata in the southern Caradoc District of Shropshire. British Museum of Natural History: Geology Series, London, pp. 259–96.

Dean, W.T. and Dineley, D.L. (1961) The Ordovician and associated Pre-Cambrian rocks of the Pontesford District, Shropshire. Geological Magazine, 98, (5), 367–76.

Dearnley, R. (1966) Ignimbrites from the Uriconian and Arvonian. Bulletin of the Geological Survey of Great Britain, 24, 1–6.

Dearnley, R. (1990) Malvern Hills Igneous Suite. British Geological Survey Technical Report WG/90/11 (Unpublished).

Dewey, J.F. (1969) Evolution of the Caledonian–Appalachian Orogen. Nature, London, 222, 124–9.

Dewey, J. F. (1982) Plate tectonics and the evolution of the British Isles. Journal of the Geological Society of London, 139, 371–412.

Dickinson, W.R. and Suczek, C.A. (1979) Plate tectonics and sandstone compositions. American Association of Petroleum Geologists Bulletin, 63, 2164–82.

Dunham, K.C., Hemingway, J.E., Versey, M.V. et al. (1953) A guide to the geology of the district around Ingleborough. Proceedings of the Yorkshire Geological Society, 29, 77–115.

Dunham, K.C. and Wilson, A.A. (1985) Geology of the northern Pennine Orefield: Volume 2, Stainmore to Craven. Economic Memoir of the British Geological Survey, Sheets 40, 41, 50, and parts of 31, 32, 51, 60 and 61, New Series (England and Wales), 247 pp.

Dunning, F.W. (1975) Precambrian craton of Central England and the Welsh Borders. In A Correlation of the Precambrian rocks in the British Isles, Geological Society of London, Special Report 6, pp. 83–96.

Earp, J.R. and Haim, B.A. (1971) British regional geology: the Welsh Borderland, 3rd edn. HMSO for Institute of Geological Sciences, London, 118 pp.

Ellis, N.V., Bowen, D.Q., Campbell, S. et al. (1996) An Introduction to the Geological Conservation Review. GCR Series No. 1, Joint Nature Conservation Committee, Peterborough, 131 pp.

Evans, A.M. (1963) Conical folding and oblique structures in Charnwood Forest, Leicestershire. Proceedings of the Yorkshire Geological Society, 34, 67–80.

Fedonkin, M.A. (1983) Organicheskiy Mir Venda (The Organic World of the Vendian), Itogi. Nauk. tekh. ser. Stratigraphy, Palaeontology, 2, 1–127.

Fedonkin, M.A. and Runnegar, B. (1992) Proterozoic metazoan trace fossils. In The Proterozoic Biosphere (eds J.W. Schopf and C. Klein), Cambridge University Press, Cambridge, pp. 389–95.

Fisher, R.V. (1961) Proposed classification of volcaniclastic rocks. Geological Society of America Bulletin, 72, 1409–14.

Fisher, R.V. (1984) Submarine volcaniclastic sediments and rocks. In Marginal Basin Geology (eds B.P. Kokelaar and M.F. Howells), Special Publication of the Geological Society of London, 16, pp. 5–27.

Fisher, R.V. and Heiken, G. (1982) Mt Pelee, Martinique: May 8 and 20, 1902, pyroclastic flows and surges. Journal of Volcanology and Geothermal Research, 13, 339–71.

Fisher, R.V. and Schmincke, H-U. (1984) Pyroclastic Rocks, Springer-Verlag, New York, 472pp.

Fiske, R.S. and Matsuda, T. (1964) Submarine equivalents of ash flows in the Tokiwa Formation, Japan. American Journal of Science, 262, 76–106.

Fitch, F.J., Evans, A.L., Grasty, R.L. and Menesiy, M.Y. (1969) Isotope age determinations on rocks from Wales and the Welsh Borders. In The Pre-Cambrian and Lower Palaeozoic Rocks of Wales (ed A. Wood), University of Wales Press, Cardiff, pp. 23–45.

Fitch, F.J., Miller, J.A. and Brown, P.E. (1964) Age of the Caledonian Orogeny and its metamorphism in Britain. Nature, London, 203, 275–8.

Ford, T.D. (1958) Precambrian fossils from Charnwood Forest. Proceedings of the Yorkshire Geological Society, 31, 211–17.

Ford, T.D. (1963) The Precambrian fossils of Charnwood Forest. Transactions of the Leicester Literary and Philosophical Society, 571, 57–62.

Ford, T.D. (1968) Precambrian palaeontology of Charnwood Forest. In The Geology of the East Midlands (eds P.C. Sylvester-Bradley and T.D. Ford), Pitman Press, Bath, pp. 12–14.

Ford, T.D. (1979) The history of the study of the Precambrian rocks in Charnwood Forest, England. In History of Concepts in Precambrian Geology (eds W.O. Kupsch and W.A.S. Sarjeant), Geological Association of Canada Special Paper, 19, pp. 65–80.

Ford, T.D. (1999) The Precambrian fossils of Charnwood Forest. Geology Today, 15, 230–4.

Frostick, L.E. and Reid, I. (1977) The origin of horizontal laminae in ephemeral stream channel-fill. Sedimentology, 24, 1–9.

Garwood, E.J. and Goodyear, E. (1918) On the geology of the Old Radnor district, with special reference to an algal development in the Woolhope Limestone. Quarterly Journal of the Geological Society of London, 74, 1–30.

Gehling, J.G. and Rigby, J.K. (1996) Long expected sponges from the Neoproterozoic Ediacaran fauna of South Australia. Journal of Paleontology, 70, 185–95.

Ghibaudo, G. (1992) Subaqueous sediment gravity flows: practical criteria for their field description and classification. Sedimentology, 39, 423–54.

Gibbons, W (1980) The geology of the Mona Complex of the Lleyn Peninsula and Bardsey Island, North Wales. Unpublished PhD thesis, CNAA (Portsmouth).

Gibbons, W. (1981) Glaucophane amphibolite in a Monian shear zone on the mainland of North Wales. Journal of the Geological Society of London, 138, 139–41.

Gibbons, W. (1983) The Monian Penmynydd zone of metamorphism in Llŷn, North Wales. Geological Journal, 18, 1–21.

Gibbons, W (1987) The Menai Strait Fault system: an early Caledonian terrane boundary in North Wales. Geology, 15, 744–7.

Gibbons, W (1990) Transcurrent ductile shear zones and the dispersal of the Avalon superterrane. In The Cadomian Orogeny (eds R.S. D'Lemos et al.), Special Publication of the Geological Society of London, 51, pp. 407–23.

Gibbons, W and Ball, M.J. (1991) Discussion on Monian Supergroup stratigraphy in northwest Wales. Journal of the Geological Society of London, 148, 5–8.

Gibbons, W and Gyopari, M.C. (1986) A greenschist protolith for blueschists in Anglesey. In Blueschists and Eclogites (eds B.W. Evans and E.H. Brown), Geological Society of America Memoirs, 164, pp. 217–327.

Gibbons, W and Horik, J.M. (1990) Contrasting metamorphic terranes in northwest Wales. In The Cadomian Orogeny (eds R.S. D'Lemos et al.), Special Publication of the Geological Society of London, 51, pp. 315–27.

Gibbons, W. and Horák, J.M. (1996) The evolution of the Neoproterozoic Avalonian subduction syetm: Evidence from the British Isles. In Avalonian and Related Peri-Gondwana Terranes of the Circum-Atlantic (eds R.D. Nance and M.D. Thompson), Geological Society of America Special Paper 304, pp. 269–80.

Gibbons, W and Mann, A. (1983) Pre-Mesozoic lawsonite in Anglesey, northern Wales: preservation of ancient blueschists. Geology, 11, 3–6.

Gibbons, W and McCarron, D. (1993) The geology of the country around Aberdaron, including Bardsey Island. Memoir of the British Geological Survey, Sheet 133 (England and Wales), 88 pp.

Gibbons, W, Harris, A.L. et al. (1994) A revised correlation of Precambrian rocks in the British Isles (eds W. Gibbons, and A.L. Harris), Geological Society of London, Special Report, 22.

Gibbons, W, Tietzsch-Tyler, D., Horák, J.M. and Murphy, F. (1994) Precambrian rocks in Anglesey, southwest Llŷn and southeast Ireland. In A Revised Correlation of Precambrian Rocks in the British Isles (eds W. Gibbons and A.L. Harris), Geological Society of London, Special Report, 22, pp. 75–84.

Glaessner, M.P. (1959) Precambrian Coelenterata from Australia, Africa and England. Nature, 183, 1472–3.

Glaessner, M.F. (1979) Precambrian. In Treatise on Invertebrate Paleontology (eds R.A. Robinson and C. Teichert), Geological Society of America and University of Kansas Press, pp. A79-A118.

Glaessner, M.F. (1984) The Dawn of Animal Life: a Biohistorical Study, Cambridge University Press, 244 pp.

Glaessner, M.F. and Wade, M. (1966) The late Precambrian fossils from Ediacara, South Australia. Palaeontology, 8, 599–628.

Goodchild, J.G. (1892) Notes on the Coniston Limestone Series. Geological Magazine, 9, 295–9.

Goto, Y. and McPhie, J. (1998) Endogenous growth of a Miocene submarine dacite cryptodome, Rebun Island, Hokkaido, Japan. Journal of Volcanology and Geothermal Research, 84, 273–86.

Gradstein, F. and Ogg, J. (1996) A Phanerozoic time scale. Episodes, 19, 1–2.

Green, A.H. (1895) Notes on some recent sections in the Malvern Hills. Quarterly Journal of the Geological Society of London, 51, 1–8.

Green, J.F.N. (1908) The geological structure of the St. David's area, Pembrokeshire. Quarterly Journal of the Geological Society of London, 64, 363–83.

Greenly, E. (1919) The Geology of Anglesey. Memoir of the Geological Survey of Great Britain, No.78, 980 pp. (2 volumes).

Greenly, E, (1920) 1:50, 000 (and 1 inch to 1 mile) Geological Map of Anglesey. Geological Survey of Great Britain, Special Sheet No 92 and (3 with parts of 94, 105 and 106).

Greig, D.C., Wright, J.E., Hains, B.A. and Mitchell, G.H. (1968) Geology of the country around Church Stretton, Craven Arms, Wenlock Edge and Brown Clee. Memoir of the British Geological Survey, Sheet 166 (England and Wales), 378 pp.

Groom, T.T. (1899) The geological structure of the southern Malvern Hills and of the adjacent district to the west. Quarterly Journal of the Geological Society of London, 55, 129–69.

Groom, T.T. (1900) On the geological structure of portions of the Malvern and Abberley Hills. Quarterly Journal of the Geological Society of London, 56, 138–97.

Groom, T.T. (1910) The Malvern and Abberley Hills, and the Ledbury District. In Geology in the field, (eds H.W. Monckton and R.S. Herries), Geologists' Association (Jubilee Vol. II), pp. 698–738.

Gürich, G. (1929) Die altesten Fossilien Siidafrikas. Zeitschrift für Praktische Geologie, 37, 85–6.

Gürich, G. (1933) Die Kuibis-Fossilien der Nama‑Formation von Sildwestafrika. Paläontoloische Zeitschrift, 15, 137–54.

Gyopari, M. (1984) A study of blueschist mineral chemistry and a new look at the Penmynydd–Gwna Boundary in S.E. Anglesey, MSc thesis, University of Wales, 123 pp.

Hamblin, R.J.O., and Coppack, B.C. (1995) Geology of the Telford and Coalbrookdale Coalfield. Memoir of the British Geological Survey, part of sheets 152 and 153 (England and Wales), 158 pp.

Hanson, R.E. (1991) Quenching and hydroclastic disruption of andesitic to rhyolitic intrusions in a submarine island-arc sequence, northern Sierra Nevada, California. Geological Society of America Bulletin, 103, 804–16.

Harrison, W.J. (1877) A sketch of the geology of Leicestershire and Rutland. In White's History, Gazetteer and Directory of Leicestershire, Sheffield, 67 pp.

Hatch, F.H. (1909). Text-book of Petrology, Swan and Sonnenschein, London, 404 pp.

Heinrichs, T (1984) The Umsoli chert, turbidite treatment for a major phreatoplinian event on the Onverwacht/Figtree transition (Swaziland Supergroup, Archaean, South Africa). Precambrian Research, 24, 237–83.

Henslow, J.S. (1822) Geological Description of Anglesea. Transactions of the Cambridge Philosophical Society, 1, 359 pp.

Herbert, A. (1944) Swithland slate headstones. Transactions of the Leicestershire Archaeological Society, 22, 211–40.

Hicks, H. (1877) On the Precambrian (Dimetian and Pebidian) rocks of St. David's. Quarterly Journal of the Geological Society of London, 33, 229–41.

Hicks, H. (1878) On the Precambrian rocks of Pembrokeshire with especial reference to the St. David's district. Quarterly Journal of the Geological Society of London, 40, 507–60.

Hill, E., and Bonney, T.G. (1878) On the pre-Carboniferous rocks of the Charnwood Forest, Part II. Quarterly Journal of the Geological Society of London, 34, 199–239.

Hill, E. and Bonney, T.G. (1891) On the northwest region of Charnwood Forest, with other notes. Quarterly Journal of the Geological Society of London, 42, 78–100.

Hofmann, H.J. (1971) Precambrian fossils, Pseudofossils and Problematica in Canada. Bulletin of the Geological Survey of Canada, 189, 1–146.

Holgate, N. (1951) On crossite from Anglesey. Mineralogical Magazine, 29, 792–8.

Holgate, N. (1977) Tourmaline from amphibolized gabbro at Hanter Hill, Radnorshire. Mineralogical Magazine, 41, 124–7.

Holgate, N. and Hallowes, K.A.K. (1941) The igneous rocks of the Stanner–Hanter District, Radnorshire. Geological Magazine, 78, 241–67.

Holl, H.B. (1865) On the geological structure of the Malvern Hills and adjacent areas. Quarterly Journal of the Geological Society of London, 21, 72–102.

Horák, J.M. (1993) The late Precambrian Coedana and Sarn Complexes, NW Wales — a geochemical and petrological study. Unpublished PhD thesis, University of Wales.

Horák, J.M. and Gibbons, W. (1986) Reclassification of blueschist amphiboles from Anglesey, North Wales. Mineralogical Magazine, 50, 533–5.

Horák, J.M., Doig, R., Evans, J.A. and Gibbons, W (1996) Avalonian magmatism and terrane linkage: new isotopic data from the Precambrian of North Wales. Journal of the Geological Society of London, 153, 91–9.

Horner, L. (1811) On the mineralogy of the Malvern Hills. Transactions of the Geological Society of London, (Series 1), 1, 281–321.

Howell, D.G. (1995) Principles of Terrane Analysis, 2nd edn, Chapman and Hall, London, 245 pp.

Howells, M.F., Reedman, A.J. and Leveridge, B.E. (1985) Geology of the country around Bangor. Explanation of Sheet 106 (England and Wales) HMSO London for British Geological Survey.

Hughes, T McK. (1867) On the break between the Upper and Lower Silurian rocks of the Lake District, as seen between Kirkby Lonsdale and Malham, near Settle. Geological Magazine, 4, 346–56.

James, J.H. (1952) Notes on the relationship of the Uriconian and Longmyndian rocks near Linley, Shropshire. Proceedings of the Geologists Association, 63, 198–200.

James, J.H. (1956) The structure and stratigraphy of part of the Pre-Cambrian outcrop between Church Stretton and Linley, Shropshire. Quarterly Journal of the Geological Society of London, 112, 315–37.

Jenkins, R.J.F. (1985) The enigmatic Ediacaran (Late Precambrian) genus Rangea and related forms. Paleobiology, 11, 336–55.

Jenkins, R.J.F. (1992) Functional and ecological aspects of Ediacaran assemblages. In Origin and Early Evolution of the Metazoa (eds J.H. Lipps and P.W. Signor), Plenum Press, New York, pp. 131–76.

Jenkins, R.J.F. and Gehling, J.G. (1978) A review of the frondlike fossils of the Ediacara assemblage. Records of the South Australian Museum, 17, 347–59.

Jensen, S., Gehling, J.G. and Droser, M.L. (1998) Ediacara-type fossils in Cambrian sediments. Nature, London, 393, 567–9.

Johnson, E.W. (1994) Lower Palaeozoic rocks of the Craven Inliers. In Yorkshire Rocks and Landscape: a Field Guide (ed. C. Scrutton), Ellenbank Press, Maryport, pp. 21–9.

Jones, F. (1926) The petrology and structure of the Charnian rocks of Bardon Hill. Geological Magazine, 63, 241–55.

Jones, F. (1927) A structural study of the Charnian rocks and of the igneous intrusions associated with them. Transactions of the Leicestershire Literary and Philosophical Society, 28, 24–41.

Jones, F. (1935) The occurrence of markfieldite at Nuneaton. Geological Magazine, 72, 91–3.

Kelk, B. and Old, R.A. (1982) British Geological Survey, 1:10 000 scale Geological Sheet SK51SW

Keller, B.M., Menner, VV, Stepanov, V.A. and Chumakov, N.M. (1974) New finds of Metazoa in the Vendomian of the Russian Platform. Akademiya Nauk SSSR, Isvestiya, Serii Geologischeskaya, 12, 130–4. [In Russian].

Keppie, J.D. (1985) The Appalachian collage. In The Caledonide Orogen: Scandinavia and related areas (eds D.G. Gee and B.A. Sturt), Wiley, New York, pp. 1217–26.

Keppie, J.D., Davis, D.W. and Krogh, T.E. (1998) U-Pb geochronological constraints on Precambrian stratified units in the Avalon Composite terrane of Nova Scotia, Canada: tectonic implications. Canadian Journal of Earth Sciences, 35, 222–36.

Khonstamm, M. (1980) Discussion on a new look at the Mona Complex (Anglesey, North Wales). Journal of the Geological Society of London, 137, 513–15.

King, W.B.R. (1932) A fossiliferous limestone associated with Ingletonian beds at Horton-in-Ribblesdale, Yorkshire. Quarterly Journal of the Geological Society of London, 88, 100–8.

Kirk, N.H. (1947) The geology of the anticlinal disturbance of Breconshire and Radnorshire: Port Faen to Presteigne. Unpublished PhD thesis, University of Cambridge.

Kirk, N.H. (1951) The upper Llandovery and lower Wenlock rocks of the area between Dolyhir and Presteigne, Radnorshire. Proceedings of the Geological Society of London, 1471, 56–8.

Kirk, N.H. (1952) The tectonic structure of the anticlinal disturbance of Breconshire and Radnorshire: Port Faen to Presteigne. Proceedings of the Geological Society of London, 1485, 87–91.

Klemenic, P. (1987) The geochemistry of Upper Proterozoic lavas from the Red Sea Hills, NE Sudan. In Geochemistry and Mineralisation of Proterozoic Volcanic Suites (eds T.C. Pharaoh, R.D. Beckinsale and D. Rickard), Special Publication of the Geological Society of London, 33, pp. 541–52.

Knoll, A.H. (1994) Proterozoic and early Cambrian protists: evidence for accelerating evolutionary tempo. Proceedings of the National Academy of Science, USA, 91, 6743–50.

Lambert, R.St.J. and Holland, J.G. (1971) The petrography and chemistry of the Igneous Complex of the Malvern Hills, England. Proceedings of the Geologists' Association, 82, 323–52.

Lambert, R.St.J. and Rex, D.C. (1966) Isotopic ages of minerals from the Pre-Cambrian Complex of the Malverns. Nature, London, 209, 605.

Lapworth, C. (1882) On the discovery of Cambrian rocks in the neighbourhood of Birmingham. Geological Magazine (2), 9, 563–5.

Lapworth, C. (1886) On the sequence and systematic position of the Cambrian rocks of Nuneaton. Geological Magazine, 3, 319–22.

Lapworth, C. (1898) Sketch of the geology of the Birmingham District. Proceedings of the Geologists' Association, 15, 313–89.

Lapworth, C. and Watts, WW (1910) Shropshire. In Geology in the field; the Jubilee Volume of the Geologists' Association (1858–1908) (eds H.W. Monckton and R.S. Herries), Edward Stanford, London, pp. 739–69

Le Bas, M.J. (1972) Caledonian igneous rocks beneath Central and Eastern England. Proceedings of the Yorkshire Geological Society, 39, 71–86.

Le Bas, M.J. (1982) Geological evidence from Leicestershire on the crust of southern Britain. Transactions of the Leicester Literary and Philosophical Society, 76, 41–57.

Le Bas, M.J. (1996) Mount Bardon volcanism. Transactions of the Leicester Literary and Philosophical Society, 90, 26–34.

Le Maitre, R.W., Bateman, P., Dudek, A. et al. (1989) A Classification of Igneous Rocks and Glossary of Terms. Recommendations of the IUGS Subcommission on the systematics of igneous rocks, Blackwell Scientific Publications, Oxford, 193 pp.

Lee, M.K. (1989) Upper crustal structure of the Lake District from modelling and image processing of potential field data. British Geological Survey Technical Report, WK/89/1.

Leedal, G.P. and Walker, G.P.L. (1950) A restudy of the Ingletonian of Yorkshire. Geological Magazine, 87, 57–66.

Lhuyd, E. (1684) An account of a Sort of Paper made of Linum Asbestinum found In Wales. Philosophical Transactions, 14, (No 166), 823.

Lisle, RJ. (1988) Anomalous vergence patterns on the Rhoscolyn anticline: implications for structural analysis of refolded regions. Geological Journal, 23, 211–20.

Lowe, D.R. (1982) Sediment gravity flows: II. depositional models with special reference to the deposits of high density turbidity currents. Journal of Sedimentary Petrology, 52, 279–97.

Lynas, B.D.T. (1988) Evidence for dextral oblique-slip faulting in the Shelve Ordovician Inlier, Welsh Borderland: implications for the South British Caledonides. Geological Journal, 23, 39–57.

Maltman, A.J. (1973) The serpentinites and related rocks of Anglesey. Unpublished PhD thesis, University of Illinois.

Maltman, A.J. (1975) Ultramafic rocks in Anglesey — their non-tectonic emplacement. Journal of the Geological Society of London, 131, 593–606.

Maltman, A.J. (1977) Serpentinites and related rocks of Anglesey. Geological Journal, 12, 113–28.

Maltman, A.J. (1979) Tectonic emplacement of ophiolitic rocks in the Precambrian Mona Complex of Anglesey; discussion. Nature, London, 277, 327.

Marr, J.E. (1892) On the Wenlock and Ludlow Strata of the Lake District. Geological Magazine, 9, 534 41.

Matley, C.A. (1899) The geology of Northern Anglesey, part 1 [with Appendix by W.W. Watts]. Quarterly Journal of the Geological Society of London, 55, 635–80.

Matley, C.A. (1900) The geology of Northern Anglesey, part. 2. Quarterly Journal of the Geological Society of London, 54, 233–56

Maley, C.A. (1928) The Precambrian Complex and associated rocks of SW Lleyn (Carnarvonshire). Quarterly Journal of the Geological Society of London, 84, 440–504.

McIlroy, D. (1996) Palaeobiology and stratigraphy of the pre-trilobitic lower Cambrian of Avalonia and Baltica; contributions from ichnology, macropalaeontology and provenance studies. Unpublished Dphil thesis, University of Oxford.

McIlroy, D., Brasier, M.D. and Moseley, J.M. (1998) The Proterozoic-Cambrian transition within the 'Charnian Supergroup' of central England and the antiquity of the Ediacara fauna. Journal of the Geological Society of London, 155, 401–13.

Meneisy, M.Y. and Miller, J.A. (1963) A geochronological study of the crystalline rocks of Charnwood Forest, England. Geological Magazine, 100, 507–23.

Merriman, R.J. and Kemp, S.J. (1997) Metamorphism of the Charnian Supergroup in the Loughborough District, 1:50K Sheet 141. British Geological Survey, Technical Report WG/97/7.

Merriman, R.J., Pharaoh, T.C., Woodcock, N.H. and Daly, P (1993) The metamorphic history of the concealed Caledonides of eastern England and their foreland. Geological Magazine, 130, 613–20.

Middleton, G.V. and Hampton, M.A. (1976) Subaqueous sediment transport and deposi tion by sediment gravity flows. In Flysch Sedimentology in North America (ed. J. Lajoie), Wiley, New York, pp. 197–218.

Misra, S.B. (1969) Late Precambrian? fossils from southeastern Newfoundland. Bulletin of the Geological Society of America, 80, 2133–40.

Moorbath, S. and Shackleton, R.M. (1966) Isotopic ages from Precambrian Mona Complex of Anglesey, North Wales. Earth and Planetary Science Letters, 1, 113–17.

Moore, R.C. (ed.) (1956). Treatise on Invertebrate Paleontology, Part F, Coelenterata. Geological Society of America and University of Kansas Press, Lawrence, Kansas, pp. 30C F 1-F498.

Moseley, J. (1979) The geology of the Late Precambrian rocks of Charnwood Forest. Unpublished PhD thesis, University of Leicester.

Moseley, J.B. and Ford, T.D. (1985) A stratigraphic revision of the Late Precambrian rocks of the Charnwood Forest, Leicestershire. Mercian Geologist, 10, 1–18.

Moseley, J. and Ford, T.D. (1989) The sedimentology of the Charnian Supergroup. Mercian Geologist, 11, 251–74.

Muir, M.D., Bliss, G.M., Grant, P.R. and Fisher, M.J. (1979) Palaeontological evidence for the age of some supposedly Precambrian rocks in Anglesey, North Wales. Journal of the Geological Society, London, 136, 61–4.

Murchison, R.I. (1839) The Silurian System, founded on geological researches in the counties of Salop, Hereford, Radnor, Montgomery, Caermarthen, Brecon, Pembroke, Monmouth, Gloucester, Worcester and Stafford: with descriptions of the coalfields and overlying formations, 2 vols, John Murray, London, 768 pp.

Murchison, R.I. (1854) Siluria, John Murray, London.

Murchison, R.I. (1867) Siluria. A History of the Oldest Rocks in the British Isles, 4th edn, John Murray, London, 566 pp.

Murphy, J.B., Strachan, R.A., Nance, R.D., Parker, D.K. and Fowler, M.B. (1999) Proto-Avalonia: A ca. 1.0 Ga tectonothermal event and constraints for the configuration of Rodinia? Geological Society of America Annual Meeting, 25–7 October, 1999, University of Colorado, Denver. Abstracts with Programs, 31, No.7, A376.

Narbonne, G.M. (1998) The Ediacara biota: a terminal Neoproterozoic experiment in the evolution of life. GSA Today, 8, 1–6.

Narbonne, G.M. and Gehling, J.G. (1998) Is Aspidella the first described Ediacaran body fossil? Geological Society of America Annual Meeting, Toronto, October 26–9 1998, Abstracts with Programs, 30, (7), A-233. Geological Society of America, Boulder, Colorado.

Narbonne, G.M., Myrow, PM., Landing, E. and Anderson, M.M. (1987) A candidate strato-type from the Precambrian-Cambrian boundary, Fortune Head, Burin Peninsula, southeastern Newfoundland. Canadian Journal of Earth Sciences, 24, 1277–93.

Narbonne, G.M., Saylor, B.Z., and Grotzinger, J.P. (1997) The youngest Ediacaran fossils from southern Africa. Journal of Palaeontology, 71, 953–67.

Nicholas, T.N. (1915) The geology of the St. Tudwal's Peninsula. Quarterly Journal of the Geological Society of London, 71, 83–143.

Noble, S.R., Tucker, R.D. and Pharaoh, T.C. (1993) Lower Palaeozoic and Precambrian igneous rocks from eastern England, and their bearing on late Ordovician closure of the Tornquist Sea: constraints from U-Pb and Nd isotopes. Geological Magazine, 130, 835–46.

Norris, R.D. (1989) Cnidarian taphonomy and affinities of the Ediacaran biota. Lethaia, 22, 381–93.

North American Commission on Stratigraphic Nomenclature (1983) North American Stratigraphic Code. American Association of Petroleum Geologists Bulletin, 67, 841–75.

Old, R.A. (1982) 1:10 000 scale geological Sheet SK41SE. British Geological Survey.

O'nions, R.K., Oxburgh, E.R., Hawksworth, C.J. et al. (1973) New isotopic and stratigraphic evidence on the age of the Ingletonian probably Cambrian of northern England. Journal of the Geological Society of London, 129, 445–52.

Palij, V.M. (1969) On a new species of Cyclomedusa from the Vendian of Podolia. Lvov Univesitatye, Paleontologischeskii Sbornik, 1, (6), 110–13 [In Russian]

Palij, V.M., Posti, E. and Fedonkin, M.A. (1979) Soft-bodied Metazoa and animal trace fossils in the Vendian and early Cambrian. In Upper Precambrian and Cambrian palaeontology of the East-European Platform. [English edition translated by M.A. Bagaeva, published 1983 by Wydawnictwa Geologiczne, Warsaw.]

Patchett, P.J. and Jocelyn, J. (1979) U-Pb zircon ages for late Precambrian igneous rocks in South Wales. Journal of the Geological Society of London, 136, 13–19.

Patchett, P.J., Gale, N.H., Goodwin, R. and Humm, M.J. (1980) Rb-Sr whole-rock isochron ages of late Precambrian to Cambrian igneous rocks from southern Britain. Journal of the Geological Society of London, 137, 649–56.

Pauley, J.C. (1986) The Longmyndian Supergroup: facies, stratigraphy and structure. Unpublished PhD thesis, University of Liverpool.

Pauley, J.C. (1990a) The Longmyndian Supergroup and related Precambrian sediments of England and Wales. In Avalonian and Cadomian Geology of the North Atlantic (eds R.A. Strachan and G.K. Taylor), Biocide, Glasgow, pp. 5–27.

Pauley, J.C. (1990b) Sedimentology, structural evolution and tectonic setting of the late Precambrian Longmyndian Supergroup of the Welsh Borderland, U.K. Special Publication of the Geological Society of London, 51, 341–51.

Pauley, J.C. (1991) A revision of the stratigraphy of the Longmyndian Supergroup, Welsh Borderland, and of its relationship to the Uriconian volcanic complex. Geological Journal, 26, 167–83.

Pearce, J.A. (1982) Trace element characteristics of lavas from destructive plate boundaries. In Orogenic andesites (ed. R.S. Thorpe), Wiley, Chichester, pp. 523–48.

Pearce, J.A., Harris, N.B.W. and Tindle, A.G. (1984) Trace Element Discrimination Diagrams for the Tectonic Interpretation of Granitic Rocks. Journal of Petrology, 25, 956–83.

Peat, C.J. (1984a) Precambrian microfossils from the Longmyndian of Shropshire. Proceedings of the Geologists' Association, 95, 17–22.

Peat, C.J. (1984b) Comments on some of Britain's oldest microfossils. Journal of Micropalaeontology, 3, 65–71.

Penn, J.S.W. and French, J. (1971) The Malvern Hills. Geologists' Association Guide, No. 4

Perrotta, A. and Scarpati, C. (1994) The dynamics of the Breccia Muso eruption (Campi Flegrei, Italy) and the significance of spatter clasts associated with the breccias. Journal of Volcanology and Geothermal Research, 59, 335–55.

Pflug, H.D. (1972) Systematik der jung-präkambrisken Petalonamae Pflug 1970. Paläontologische Zeitschrift, 46, 56–67.

Pharaoh, T.C. and Evans, C.J. (1987) Morley Quarry No.1 Borehole: Geological Well Completion Report. Investigation of the Geothermal Potential of the UK, British Geological Survey Report, 43 pp.

Pharaoh, T.C. and Gibbons, W. (1994) Precambrian rocks in England and Wales south of the Menai Strait Fault System. In A Revised Correlation of Precambrian Rocks in the British Isles (eds W. Gibbons and A.L. Harris), Geological Society of London, Special Report, 22, pp. 85–97

Pharaoh, T.C., Merriman, R.J., Evans, J.A., Brewer, T.S., Webb, P.C. and Smith, N.J.P. (1991) Early Palaeozoic arc-related volcanism in the concealed Caledonides of southern Britain. Annales de la Société Géologique de Belgique, 114, 63–91.

Pharaoh, T.C., Merriman, R.J. Webb, P.C. and Beckinsale, R.D. (1987a). The concealed Caledonides of eastern England: preliminary results of a multidisciplinary study. Proceedings of the Yorkshire Geological Society, 46, 355–69.

Pharaoh, T.C., Webb, PC., Thorpe, R.S. and Beckinsale, R.D. (1987b) Geochemical evidence for the tectonic setting of late Proterozoic volcanic suites in central England. In Geochemistry and Mineralisation of Proterozoic volcanic suites (eds T.C. Pharaoh, R.D. Beckinsale and D. Rickard), Special Publication of the Geological Society of London, 33, pp. 541–52.

Phillips, E. (1989) The geology of the Monian Supergroup, Western Anglesey, North Wales. Unpublished PhD thesis, University of Wales.

Phillips, E. (1991a) The lithostratigraphy, sedimentology and tectonic setting of the Monian Supergroup, western Anglesey, North Wales. Journal of the Geological Society of London, 148, 1079–90.

Phillips, E. (1991b) Progressive deformation of the South Stack and New Harbour Groups, Holy Island, western Anglesey, North Wales. Journal of the Geological Society of London, 148, 1091–1100.

Phillips, J. (1828) On a group of slate rocks ranging ESE between the rivers Lune and Wharfe, from near Kirkby Lonsdale to near Malham; and on the attendant Phenomena. Tansactions of the Geological Society of London, 3, 1–19.

Phillips, J. (1848) The Malvern Hills compared with the Palaeozoic districts of Abberley, Woolhope, May Hill, Tortworth and Usk. Memoir of the Geological Survey, 2, Pt. 1.

Phipps, C.B. and Reeve, F.A.E. (1969) Structural geology of the Malvern, Abberley and Ledbury hills. Journal of the Geological Society of London, 125, 1–37.

Pichler, H. (1965) Acid Hyaloclastites. Bulletin Volcanologique, 28, 293–312.

Piper, J.D.A. and Strange, T.M. (1989) A palaeo-magnetic study of the Charnian, Caldecote, and Uriconian volcanics and plutons, central England. Geological Journal, 24, 331–57.

Platt, J.I. (1933) The geology of the Warren House Series. Geological Magazine, 70, 423–9.

Playfair, J. (1802) Illustrations of the Huttonian Theory of the Earth, Caddell and Davies and William Creech, London and Edinburgh.

Plummer, S. (1980) Circular structures in a late Precambrian sandstone: fossil medusoids or evidence of fluidization? Transactions of the Royal Society of South Australia, 104, 13–16.

Pocock, R.W., Whitehead, T.H., Wedd, C.B. and Robertson, T. (1938) Shrewsbury District including the Hanwood Coalfield. Memoir of the Geological Survey of Great Britain, England and Wales.

Powell, D.W. (1955) Gravity and magnetic anomalies in North Wales. Quarterly Journal of the Geological Society of London, 111, 375–97.

Rast, N., 0 'Brien, B.H. and Wardle, R.J. (1976) Relationships between Precambrian and Lower Palaeozoic rocks of the Avalon Platform in New Brunswick, the north-east Appalachians and the British Isles. Tectonophysics, 30, 315–38.

Rastall, R.H. (1907) The Ingletonian series of west Yorkshire. Proceedings of the Yorkshire Geological Society, 10, 87–100.

Raw, F. (1904) Notes on the igneous rocks of Stanner Rocks and Hanter Hill. Proceedings of the Geologists' Association, 18, 460–2.

Rayner, D.H. (1957) A problematical structure from the Ingletonian rocks, Yorkshire. Transactions of the Leeds Geological Association, 7, 34–42.

Reading, H.G. and Poole, A.B. (1961) A Llandovery shoreline from the southern Malverns. Geological Magazine, 98, 295–300.

Reedman, A.J., Leveridge, B.E. and Evans, R.B. (1984). The Arfon Group ('Arvonian') of North Wales. Proceedings of the Geologists' Association, 95, 313–21.

Retallack, G.J. (1994) Were the Ediacaran fossils lichens? Paleobiology, 20, 523–44.

Richter, R. (1955) Die altesten Fossilien Süd-Afrikas. Senckenbergiana Lethaea, 36, 243–89.

Runnegar, B.N. (1992) Proterozoic fossils of soft-bodied Metazoans (Ediacara faunas). In The Proterozoic Biosphere (eds J.W. Schopf and C. Klein), Cambridge University Press, pp. 999–1007.

Runnegar, B.N. (1995) Vendobionta or Metazoa? Developments in understanding the Ediacara fauna. Neues Jahrbuch für Geologie and Paläontologie, 195 (1–3), 303–18.

Runnegar, B.N. and Fedonkin, M.A. (1992) Proterozoic Metazoan body fossils. In The Proterozoic Biosphere (eds J.W. Schopf and C. Klein), Cambridge University Press, pp. 369–95.

Rushton, A.W.A. (1974) The Cambrian of Wales and England. In The Cambrian of the British Isles, Norden and Spitzbergen (Lower Palaeozoic rocks of the world, 2). (ed. C.H. Holland), Wiley, London, pp. 3–121.

Rushton, A.W.A., Owen, A.W., Owens, R.M. and Prigmore J.K. (1999) British Cambrian to Ordovician Stratigraphy, GCR Series No. 18, JNCC, Peterborough, 435 pp.

Rutley, F. (1887) On the rocks of the Malvern Hills. Quarterly Journal of the Geological Society of London, 43, 481–514.

Salter, J.W. (1856) On some fossil remains in the Cambrian rocks of the Longmynd and North Wales. Quarterly Journal of the Geological Society of London, 12, 246–51.

Salter, J.W. (1857) On Annelide-burrows and surface-markings from the Cambrian rocks of the Long Mynd. Quarterly Journal of the Geological Society of London, 13, 199–206.

Saunders, A.D. and Tarney, J. (1984) Geochemical characteristics of basaltic volcanism within back-arc basins. In Marginal basin geology (eds B.P. Kokelaar and M.F. Howells), Special Publication of the Geological Society of London, 16, pp. 59–76.

Sedgwick, A. (1852) On the Lower Palaeozoic rocks at the base of the Carboniferous chain between Ravenstonedale and Ribblesdale. Quarterly Journal of the Geological Society of London, 8, 35–54.

Seilacher, A. (1989) Vendozoa: organismic constructions in the Proterozoic biosphere. Lethaea, 22, 229–39.

Seilacher, A. (1992) Vendobionta and Psammocorallia: lost constructions of Precambrian evolution. Journal of the Geological Society of London, 140, 607–13.

Shackleton, R.M. (1954) The structure and succession of Anglesey and the Lleyn peninsula. Journal for the Advancement of Science, London, 11, 106–8.

Shackleton, R.M. (1956) Notes on the structure and relations of the Precambrian and Ordovician rocks of south-western Lleyn (Carnarvonshire). Geological Journal, 1, 400–9.

Shackleton, R.M. (1969) The Pre-Cambrian of North Wales. In The Pre-Cambrian and Lower Palaeozoic rocks of Wales (ed. A. Wood), University of Wales Press, Cardiff, pp. 1–22.

Shackleton, R.M. (1975) Precambrian rocks of North Wales. In A Correlation of the Precambrian Rocks in the British Isles, Geological Society of London, Special Report, 6, pp. 76–82.

Smith, J.V. and Brown, W.L. (1988) Feldspars. Minerals, vol. 1, 2nd edn, Springer-Verlag, 282 pp.

Smith, N.J.P. (1987) The deep geology of central England: the prospectivity of the Palaeozoic rocks. In Petroleum Geology of North West Europe (eds J. Brooks and K.W. Glennie), Graham and Trotman, London, pp. 217–24.

Sokolov, B.S. (1973) Vendian of northern Eurasia. Memoir of the American Association of Petroleum Geologists, 19, 204–18.

Soper, N.J., Webb, B.C. and Woodcock, N.H. (1987) Late Caledonian (Acadian) transpres-sion in north-west England: timing, geometry and geotectonic significance. Proceedings of the Yorkshire Geological Society, 46, 175–92.

Sprigg, R.C. (1947) Early Cambrian ?jellyfishes from the Flinders Ranges, South Australia. Transactions of the Royal Society of South Australia, 71, 212–24, pls 5–8.

Stix, J. (1991) Subaqueous, intermediate to sili-cic-composition explosive volcanism: a review. Earth-Science Reviews, 31, 21–53.

Stephenson, D., Bevins, R.E., Millward, D. et al. (1999) Caledonian Igneous rocks of Great Britain, GCR Series No. 17, JNCC, Peterborough, 648 pp.

Stow, D.A.V. (1986) Deep clastic seas. In Sedimentary Environments and Facies (ed. H.G. Reading), Blackwell, Oxford, pp. 399–444.

Stow, D.A.V. and Piper, D.J.W. (1984) Deep-water fine-grained sediments: facies models. In Fine-grained Sediments: Deep-water Processes and Facies (eds D.A.V. Stow and D.J.W. Piper), Special Publication of the Geological Society of London, 15, pp. 611–46.

Strachan, R.A., Nance, R.D., Dallmeyer, R.D., D'Lemos, R.S., Murphy, J.B. and Watt, G.R. (1996) Late Precambrian tectonothermal evolution of the Malverns Complex. Journal of the Geological Society of London, 153, 589–600.

Strahan, A., Cantrill, T.C., Dixon, E.E.L and Thomas, H.H. (1909) The geology of the South Wales Coalfield. Part X. The country around Carmarthen. Memoir of the Geological Survey of Great Britain.

Strand, T. and Kuhling, O. (1972) The Scandinavian Caledonides, Wiley-Interscience, London and New York, 302 pp.

Sutherland, D.S., Boynton, H.E., Ford, T.D., Le Bas, M.J. and Moseley, J. (1987) A guide to the geology of the Precambrian rocks of Bradgate Park in Charnwood Forest, Leicestershire. Transactions of the Leicester Literary and Philosophical Society, 84, 47–83.

Sutherland, D.S., Boynton, H.E., Ford, TD., Le Bas, M.J. and Moseley, J. (1994) A guide to the geology of the Precambrian rocks of Bradgate Park in Charnwood Forest, Leicestershire. Revised edn. Transactions of the Leicester Literary and Philosophical Society, 87, 36 pp.

Taylor, J.H. (1958) Pre-Cambrian sedimentation in England and Wales. Ecologae Geologicae Helvetiae, 51, 1078–92.

Thorpe, R.S. (1971) A potash-rich trachyte from the Precambrian of England. Contributions to Mineralogy and Petrology, 31, 115–20.

Thorpe, R.S. (1972a) The geochemistry and correlation of the Warren House, the Uriconian and the Charnian volcanic rocks from the English Precambrian. Proceedings of the Geologists Association, 83, 269–85.

Thorpe, R.S. (1972b) Possible subduction zone origins for two Precambrian calc-alkaline complexes from southern Britain. Bulletin of the Geological Society of America, 83, 3663–8.

Thorpe, R.S. (1972c) Ocean floor basalt affinity of Precambrian glaucophane schist from Anglesey. Nature, Phys. Sci., 240, 164–6.

Thorpe, R.S. (1974) Aspects of magmatism and plate tectonics in the Precambrian of England and Wales. Geological Journal, 9, 115–35.

Thorpe, R.S. (1979) Late Precambrian igneous activity in Southern Britain. In The Caledonides of the British Isles — reviewed, (eds A.L. Harris, C.H. Holland and B.E. Leake), Special Publication of the Geological Society of London, 8, 579–584.

Thorpe, R.S (1982) Precambrian igneous rocks of England, Wales and south-eastern Ireland. In Igneous Rocks of the British Isles (ed. D.S. Sutherland), John Wiley, Chichester, pp. 19–38.

Thorpe, R.S. (1987) Pseudotachylite from a Precambrian shear zone in the Malvern Hills. Proceedings of the Geologists' Association, 98, 205–10.

Thorpe, R.S, Beckinsale, R.D., Patchett, P.J., Piper, A., Davies, G.R. and Evans, J. A. (1984) Crustal growth and late Precambrian-early Palaeozoic plate tectonic evolution of England and Wales. Quarterly Journal of the Geological Society of London, 141, 521–36.

Tietzsch-Tyler, D. and Phillips, E.R. (1989) Correlation of the Monian Supergroup in NW Anglesey with the Cahore Group in SE Ireland. Journal of the Geological Society of London, 141, 417–18.

Timins, J.H. (1867) On the chemical geology of the Malvern Hills. Quarterly Journal of the Geological Society of London, 23, 352–70.

Toghill, P (1990) Geology in Shropshire, Swan Hill Press, Shrewsbury, 188 pp.

Toghill, P. (1992) The Shelveian event, a late Ordovician tectonic episode in Southern Britain (Eastern Avalonia). Proceedings of the Geologists' Association, 103, 31–5.

Toghill, P. and Beale, S. (1994) Ercall quarries, Wrekin area, Shropshire: Geology teaching trail. Geologists' Association Guide, Geologists' Association, London, 21 pp.

Toghill, P and Schell, K. (1984). Shropshire geology — stratigraphic and tectonic history. Field Studies, 6, 59–101.

Tucker, R.D. and Pharaoh, T.C. (1991) U-Pb zircon ages for Late Precambrian igneous rocks in southern Britainlourna/ of the Geological Society of London, 148, 435–43.

Tunbridge, I.P. (1981) Sandy high-energy flood sedimentation — some criteria for recognition, with an example from the Devonian of S.W. England. Sedimentary Geology, 28, 79–95.

Vernon, R.H. (1983) Restite, xenoliths and microgranitoid enclaves in granites. Journal of the Proceedings of the Royal Society of New South Wales, 116, 77–103.

Virdi, N.S. (1978) The Mona Complex of Anglesey, North Wales and plate tectonics: a reappraisal. Bulletin of the Indian Geological Association, 11, 11–23.

Walker, G.P.L. (1984) Characteristics of dune-bedded pyroclastic surge bedsets. Journal of Volcanology and Geothermal Research, 20, 281–96.

Walker, R.G. (1967) Turbidite sedimentary structures and their relationship to proximal and distal depositional environments. Journal of Sedimentary Petrology, 37, 25–43.

Walker, R.G. (1978) Deep-water sandstone facies and ancient submarine fans: models for exploration for stratigraphic traps. Bulletin of the American Association of Petroleum Geologists, 62, 932–66.

Walker, T.R., Waugh, B. and Crone, A.J. (1978) Diagenesis in first-cycle desert alluvium of Cenozoic age, southwestern United States and northwestern Mexico. Bulletin of the Geological Society of America, 89, 19–32.

Waller, T.H. (1886) Preliminary notes on the volcanic and associated rocks of the neighbourhood of Nuneaton. Geological Magazine, 3, 322–5.

Walter, M.R. and Heys, G.R. (1985) Links between the rise of the Metazoa and the decline of the stromatolites. Precambrian Research, 29, 149–74.

Watts, W.W. (1903) Charnwood Forest: A buried Triassic landscape. Geographical Journal, 21, 623–36

Watts, W.W. (1906) On the igneous rocks of the Welsh Border. Proceedings of the Geologists' Association, 19, 178–80.

Watts, W.W (1947) Geology of the Ancient Rocks of Charnwood Forest, Leicestershire. Leicester Literary and Philosophical Society, Leicester, 160 pp.

Whitehead, T.H., Robertson, T, Pocock, R.W. and Dixon, E.E. (1928). The country between Wolverhampton and Oakengates. Memoir of the Geological Survey of England and Wales, Sheet 153, 244 pp.

Whittard, W.F. et al. (1953) Report of summer field meeting in South Shropshire. Proceedings of the Geologists' Association, 64, 232–50.

Williams, H. and Hatcher, R.D. Jr. (1982) Suspect terranes and the accretionary history of the Appalachian orogen. Geology, 16, 530–6.

Williams, H. and McBirney, A.R. (1979) Volcanology, Freeman, Cooper and Co., San Francisco, 397 pp.

Wills, L.J. (1978) A palaeogeographic map of the Lower Palaeozoic floor below the cover of Upper Devonian, Carboniferous and later formations. Memoir of the Geological Society of London, 8, 36 pp.

Wills, L.J., and Shotton, F.W. (1934) New sections showing the junction of the Cambrian and Precambrian at Nuneaton. Geological Magazine, 71, 512–21.

Wilson, A.A. and Cornwell, J.D. (1982) The Institute of Geological Sciences borehole at Beckermonds Scar, North Yorkshire. Proceedings of the Yorkshire Geological Society, 44, 59–88.

Wilson, C.N. and Walker, G P. L. (1982) Ignimbrite depositional facies: the anatomy of a pyroclastic flow. Journal of the Geological Society of London, 139, 581–92.

Windley, B.F. (1978) The Evolving Continents, Wiley, London, 385 pp.

Winkler, H.G.F. (1979) Petrogenesis of Metamorphic Rocks, 5th edn, Springer-Verlag, New York, 348 pp.

Wood, D.S. (1969) The base and correlation of the Cambrian rocks of North Wales. In The Precambrian and Lower Palaeozoic Rocks of Wales (ed. A. Wood), University of Wales Press, Cardiff, pp. 47–66.

Wood, M. and Nicholls G.D. (1973) Precambrian stromatolitic limestones from Northern Anglesey. Nature, London, 241, 65.

Woodcock, N.H. (1984a) Early Palaeozoic sedimentation and tectonics in Wales. Proceedings of the Geologists' Association, 95, 323–35.

Woodcock, N.H. (1984b) The Pontesford Lineament, Welsh Borderland. Journal of the Geological Society of London, 141, 1001–14.

Woodcock, N.H. (1988) Strike-slip faulting along the Church Stretton Lineament, Old Radnor, Welsh Borderland. Journal of the Geological Society of London, 145, 925–33.

Woodcock, N.H. (1992) Dolyhir Quarries, Old Radnor. In Caledonian Structures in Britain south of the Midland Valley (ed. J.E. Treagus), Geological Conservation Review Series No. 3, Chapman and Hall, London, pp. 154–8.

Woodcock, N.H. (1993) The Precambrian and Silurian of the Old Radnor to Presteigne area. In Geological Excursions in Powys, Central Wales (eds N.H. Woodcock and M.G. Bassett), National Museum of Wales, Cardiff, pp. 229–41.

Woodcock, N.H. and Gibbons, W. (1988) Is the Welsh Borderland Fault System a terrane boundary? Journal of the Geological Society of London, 145, 915–23.

Woodcock, N.H. and Pauley, J.C. (1989) The Longmyndian rocks of the Old Radnor Inlier, Welsh Borderland. Geological Journal, 24, 113–20.

Worssam, B.C. and Old, R.A. (1988) Geology of the country around Coalville. Memoir of the British Geological Survey, Sheet 155 (England and Wales), 161 pp.

Worssam, B.C., Ellison, R.A. and Moorlock, B.S.P. (1989) Geology of the country around Tewkesbury. Memoir of the British Geological Survey, Sheet 216 (England and Wales), 57 pp.

Wright, A.E. (1969) Precambrian rocks of England, Wales and south-east Ireland. Memoir of the American Association of Petroleum Geologists, 12, 93–109.

Wright, A.E., Fairchild, I.J., Moseley, F. and Downie, C. (1993) The Lower Cambrian Wrekin Quartzite and the age of its unconfor-mity on the Ercall Granophyre. Geological Magazine, 130, 257–64.

Wright, J.V., Smith, A.L. and Self, S. (1980) A working terminology of pyroclastic deposits. Journal of Volcanology and Geothermal Research, 8, 315–36.

Ziegler, P.A. (1982) Geological Atlas of Western and Central Europe. Shell International Petroleum, Maatschappij BV., The Hague.

Ziegler, P.A. (1990) Geological Atlas of Western and Central Europe, 2nd edn, Shell Internationale Petroleum, Maatschappij B.V.-Geological Society of London, Elsevier, Amsterdam.

References